A power conversion apparatus converts power from a power supply to power to be supplied to a motor including windings for n phases where n is an integer equal to or greater than three. The power conversion apparatus includes a first inverter connected to one end of the winding for each phase of the motor, a second inverter connected to another end of the winding for each phase, and a control circuit to control an operation of each of the first and second inverters. The windings for the n phases include a winding for a first phase and a winding for a second phase, and the control circuit superimposes a correction wave to reduce an induced electric current induced in the winding for the second phase by passing electricity through the winding for the first phase on a fundamental wave to pass electricity through the winding for the second phase.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The power conversion apparatus according to claim 1, wherein the correction wave includes an electric current component opposite in phase to the induced electric current induced in the winding for the second phase.
3. The power conversion apparatus according to claim 2, wherein the correction wave includes a voltage component opposite in phase to the induced electric current induced in the winding for the second phase.
11. An electric power steering apparatus comprising the motor driving unit of claim 10.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
June 28, 2018
August 16, 2022
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